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INTRODUCTION
Glass is widely used in science and industry because of its three main attributes: it is transparent; it is inert to most chemicals; and it is malleable. Glassblowing is the art and science of manipulating glass into the numerous shapes required for use in research and commerce . Glassblowers selects glass depending on its properties and how it will be used eg based on heat requirements, chemical inertness, or ability to fuse to metals. .
Glasses are usually formed by melting crystalline materials which are called FORMERS at very high temperatures. Most commercial glass is made with sand that contains the most common FORMER, Silica. Other FORMERS include: Anhydrous Boric Acid Anhydrous Phosphoric Acid